Philips Sound Solutions
8. Appendix B, USB Hub Considerations
8.1. Introduction to USB Hub
A hub is a USB device that uses one USB port for connection to a PC and typically provides four additional ports for connection to USB devices. The function is similar to an electrical plug expander or an extension cord with multiple receptacles.
Some of the earlier computers have only two USB ports that are usually located on the back- side of the computer. In this case if we have more than two USB devices for connection to the PC we need to use a USB hub. Using a hub not only provides more USB ports, but also provides easy access to the ports that are located in the back of the computer.
Most newer computers have two USB ports in the back and two additional ports in the front. The front ports are usually concealed under a flip up or flip down cover. Refer to your PC document to locate these ports.
A USB host controller card may be added to a computer if it does not have any USB ports at all. These cards need to be installed inside the computer in a PCI slot.
8.1.1. Power Limitation
Hubs, like any USB device, may be
8.1.2. Bandwidth Limitation Issues
Each USB port on the PC has a maximum bandwidth of 12
PSC805 Aurilium™ Sound Processor Users Guide | 36 |